Evolution of UV Vision and Wing Coloration in Heliconius Butterflies and Co-Mimics

赫利康蝴蝶及其拟态动物的紫外线视觉和翅膀颜色的演变

• 批准号: 1025106
• 负责人: Adriana Briscoe
• 金额: $ 48.5万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-15 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1025106&HistoricalAwards=false
• 关键词: Evolution; UV; Vision; Wing; Coloration

Project Title: Evolution of UV Vision and Wing Coloration in Heliconius Butterflies and Co-mimicsPrincipal Investigator: Briscoe, Adrianna D.Co-Principal Investigator: Reed, Robert D.NSF Project Number: 1025106Mimicry, the phenomenon by which organisms come to resemble distantly related distasteful or poisonous organisms, provides some of the strongest examples of adaptive evolution in the wild. While there is much evidence to suggest that the visual systems and color signals of aquatic animals evolve in tandem, the extent to which such correlated evolution exists in terrestrial animals like mimetic butterflies and their visual predators is largely an open question. This proposal is based on a recent discovery that duplication and positive selection of an ultraviolet-sensitive visual pigment in Heliconius butterflies coincided with the evolution of UV-yellow pigments on their wings which may serve as a signal to both visual predators and/or potential mates. The project seeks to investigate the evolution of wing pigments and visual eye pigments in Heliconius, and a community of cloud forest butterflies that mimic Heliconius using anatomical, molecular, physiological and computational modeling experiments. Together with environmental light measurements, these data will be used to refine computational models of butterfly and avian color vision to further our understanding of the potential benefit to the organisms of evolving new visual photoreceptors and signals in the ultraviolet range. A postdoc, graduate student and several undergraduates including members of underrepresented groups in the sciences will be trained in molecular biology, genetics, biochemistry and spectrometric methods. Genetic data will be deposited in the publically available database GenBank http://www.ncbi.nlm.nih.gov/genbank/ and wing reflectance spectra will be made available online in journal and lab websites.

项目名称：蝴蝶和共生模仿者的紫外线视觉和翅膀颜色的进化主要研究者：布里斯科，阿德里安娜d.共同主要研究者：里德，罗伯特D.NSF项目编号：1025106模仿者，生物体变得像远亲的令人讨厌或有毒的生物体的现象，提供了一些野外适应性进化的最强例子。虽然有很多证据表明，水生动物的视觉系统和颜色信号是同步进化的，但这种相关进化在陆地动物（如模拟蝴蝶和它们的视觉捕食者）中存在的程度在很大程度上是一个悬而未决的问题。这一建议是基于最近的一项发现，即蝴蝶对紫外线敏感的视觉色素的复制和正向选择与它们翅膀上的紫外线黄色色素的进化相一致，这可能是对视觉捕食者和/或潜在配偶的信号。该项目旨在研究Heliconius翅膀色素和视觉眼睛色素的进化，以及一个云森林蝴蝶群落，它们通过解剖、分子、生理和计算建模实验来模仿Heliconius。与环境光测量一起，这些数据将用于改进蝴蝶和鸟类颜色视觉的计算模型，以进一步了解进化新的视觉光感受器和紫外线范围内信号对生物体的潜在益处。一名博士后、研究生和几名本科生（包括在科学领域代表性不足的群体的成员）将接受分子生物学、遗传学、生物化学和光谱方法方面的培训。基因数据将存储在公共数据库GenBank http://www.ncbi.nlm.nih.gov/genbank/中，翅膀反射光谱将在期刊和实验室网站上在线提供。